EF4-获得儿童价值

Question

i'm beginning with EF4,

In my Controller class, i have an object like this

House
   ->List<Wall>
           ->List<Windows>

Because i want to be able to cancel change, i keep this data in a object

(i use SaveChange to "commit" data)

I would like to have a function like that :' Windows getWindowsById(Guid IdWindows) '

Is their any better way to get my windows without iterating with "wall" and "windows" ( foreach ... ) ?

I use CTP5 so maybe a query with the Local propertie can be a way, but i would like to know the best way

thanks

Answer 1

如果您使用的是CTP5，我希望它可以正常工作：

context.Windows.Local.SingleOrDefault(w => w.Id == idWindow);